USD304358SExpiredUtility

Stair climbing exercise apparatus

88
Assignee: PRECOR INCPriority: Oct 21, 1987Filed: Oct 21, 1987Granted: Oct 31, 1989
Est. expiryOct 21, 2007(expired)· nominal 20-yr term from priority
Inventors:Timothy O. ArmstrongJohn W. BullDavid Smith
88
PatentIndex Score
27
Cited by
39
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a stair climbing exercise apparatus, as shown and described.

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